What effects do CCTV cameras have in criminal investigations?

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# What effects do CCTV cameras have in criminal investigations?
### Dr Matt Ashby, University College London

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“CCTV has been instrumental in identifying and bringing to justice those involved in all aspects of criminality”

– UK National CCTV Strategy

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“DCI Mick Neville [said] ‘Billions of pounds has been spent on kit … It's been an utter fiasco: only 3% of crimes were solved by CCTV.’”

– The Guardian

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How likely is CCTV to be useful in criminal investigations?

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Why does CCTV sometimes fail?

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### Some crimes were in locations not covered by CCTV

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### CCTV is more likely to be available in some places

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### Sometimes investigators did not request CCTV

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### … even though CCTV can be just as useful for minor crimes

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### The more hours of CCTV to be watched, the less likely investigators will request it

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### Sometimes CCTV quality was too poor

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# Questions for police

Do you know how often CCTV is useful in your investigations?

Do you know in what circumstances CCTV fails to assist?

Do your detectives always look for CCTV?

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# Questions for CCTV system operators

How good is your system at assisting investigations?

Is your system well maintained?

Can you extract recordings if needed?

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# Thanks!

These slides: <a href="http://lesscrime.info/slides/trygghetnu/" style="color: black; font-weight: bold; text-decoration: none;">lesscrime.info/slides/trygghetnu</a>

Images: <a href="https://unsplash.com/@lianhao?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText">Lianhao Qu</a>, <a href="https://flic.kr/p/4SqiUU">Gordon Joly</a>, <a href="https://flic.kr/p/7sNneP">Tim Shields</a>.

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